Assignment Of An Auxiliary Function To A Number Of Groups - Siemens SINUMERIK 828D Function Manual

Hide thumbs Also See for SINUMERIK 828D:

Table of Contents

H2: Auxiliary function outputs to PLC

8.13 Block-search response

The user can scan the collected auxiliary functions after a block search and, under certain circumstances, output

them again by means of the subprogram or synchronous actions.

The following auxiliary functions are not collected:

Auxiliary functions which are not assigned to any auxiliary function group.

Auxiliary functions which are assigned to the first auxiliary function group.

Overstorage of auxiliary functions

After completion of a block search, the collected auxiliary functions are ouput on the next NC-START. If it is

necessary to output additional auxiliary functions, they can be added via the "Overstore" function (see "Response

to overstore [Page 438]").

M19 behavior (position spindle)

After a block search, the last spindle positioning command programmed with M19 is always carried out, even if

other spindle-specific auxiliary functions are programmed between the part program with M19 and the target

block. Setting the necessary spindle enables must therefore be derived from the interface signals of the traverse

commands in the PLC user program:

DB31, ... DBX64.6 / 64.7 (traverse command minus / plus)

In this case, the spindle-specific auxiliary functions M3, M4, and M5 are not suitable because they might not be

output to the PLC until after the spindle positioning.

For detailed information on the block search, please refer to:

Function Manual, Basic Functions, Mode Group, Channel, Program Operation, Reset Behavior (K1)

Assignment of an auxiliary function to a number of groups

User-defined auxiliary functions can also be assigned to multiple groups via the group assignment (MD22000

$MC_AUXFU_ASSIGN_GROUP). During the block search these auxiliary functions are collected for all the

configured groups.

Predefined auxiliary functions can only be assigned to one group.

Function Manual, 09/2011, 6FC5397-0BP40-2BA0

Basic Functions

Sinumerik 840d sl